CN211955739U - Portable quick intermediate relay calibration equipment - Google Patents
Portable quick intermediate relay calibration equipment Download PDFInfo
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- CN211955739U CN211955739U CN201922065105.6U CN201922065105U CN211955739U CN 211955739 U CN211955739 U CN 211955739U CN 201922065105 U CN201922065105 U CN 201922065105U CN 211955739 U CN211955739 U CN 211955739U
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- 238000012360 testing method Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 238000012795 verification Methods 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 18
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model relates to an electric power overhauls auxiliary assembly technical field, its aim at provides a portable quick auxiliary relay calibration equipment, including the device shell, inside power module and the pressure regulating plate of being provided with of device shell, the output of pressure regulating plate is connected with digital display voltage display unit, and still is connected with the pressure regulating potentiometre on it, the positive upper portion of device shell is provided with the relay base, and the top is stayed and is equipped with test interface, the relay base is connected with pressure regulating plate and contact state display unit, and contact state display unit's the other end is connected with power module, and its beneficial effect lies in: through improving current relay calibration equipment, make its volume reduce, portable for the maintainer can hand-carry and improve work convenience, pulls out the relay simultaneously and inserts and can use on the relay base of this device, and convenient operation can effectively reduce the time of traditional inspection work, helps improving work efficiency.
Description
Technical Field
The utility model relates to an electric power overhauls auxiliary assembly technical field, especially relates to a portable quick auxiliary relay calibration equipment.
Background
The intermediate relay is a component widely applied to relay protection and automatic control systems, and is used for transmitting intermediate signals in a control circuit to realize a control function or increase the number of contacts and the capacity of the contacts. The device is an electrical component which is applied to an electrical automation control system at the earliest and is used most widely. The intermediate relay can realize electric isolation and realize the set control purpose, is an important basic component in an electric automatic control system, and has wide application. Since the intermediate relays are used in a large number of automatic control devices and play an important role, it is necessary to check and verify the functional normality of the intermediate relays. According to the protective relay calibration regulations and equipment management regulations made by enterprises, the intermediate relay needs to be regularly checked to ensure that the intermediate relay works normally. For field maintenance personnel, the traditional inspection method is to disassemble the relay of the equipment and inspect and verify the relay on the test equipment during equipment maintenance. The testing for the starting value/return value (voltage) of the intermediate relay mainly utilizes some testing tools such as a direct-current testing power supply and a universal meter (voltmeter), and the checking and checking method has many problems in actual work and mainly has the following points:
1. the inspection test takes a long time: because test equipment is generally in the repair room, when overhauing at every turn, the maintainer all need pull down the relay, shifts to the repair room and inspects, consuming time earlier and later longer. Especially, in the existing automatic control equipment, a large number of intermediate relays are adopted as the output isolation and internal control functions of the equipment, and the workload of relay verification is very large. In the work of eliminating the defect of the electrical equipment and the like, if the relay needs to be checked on the equipment site, the traditional test equipment can only be transported to the maintenance site, and meanwhile, the problems of maintenance of a power supply and the like need to be considered, so that certain inconvenience is brought to the work.
2. The traditional inspection method is not intuitive and has hidden trouble of missing inspection: to the inspection work of normally open, normally closed contact of intermediate relay, when checking each group of contact, need the maintainer to use testing tool such as universal meter to carry out the resistance measurement to the different contacts of relay in proper order, the problem of lou examining and wrong detection appears easily. Meanwhile, the working conditions of normally open and normally closed contacts of the relay cannot be visually displayed.
Because the limitation of the traditional inspection equipment influences the efficiency of the inspection work, the development of the novel intermediate relay checking device which can conveniently carry out the inspection work of the relay on the inspection site and improve the efficiency of the inspection work has very practical significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, inconvenient the carrying to current relay inspection, the problem that wastes time and energy, a portable quick intermediate relay calibration equipment is provided, through improving original relay calibration equipment, make its volume reduce, and is convenient for carry, make maintainer can hand-carry and not influence the work convenience, pull out the relay simultaneously and insert and can use on the device's relay base, and convenient for operation can effectively reduce the time of traditional inspection work, help improving work efficiency, normally open as the relay through adopting emitting diode in addition, the state display of normally closed contact, can visual display, effectively avoid traditional inspection method to need maintainer to measure the problem of each gang point one by one, help reducing working strength.
In order to realize the purpose, the utility model discloses a technical scheme is:
a portable quick intermediate relay checking device comprises a device shell 3;
a power supply module and a voltage regulating plate are arranged in the device shell 3 and connected, the output end of the voltage regulating plate is connected with a digital display voltage display unit 9, the digital display voltage display unit is also connected with a voltage regulating potentiometer 6, and the digital display voltage display unit 9 and the voltage regulating potentiometer 6 are both fixedly arranged on the front side of the device shell 3;
Further, the contact state display unit includes 4 pairs of normally open contact indicator lamps 4 and 4 pairs of normally closed contact indicator lamps 5.
Further, the normally open contact indicator lamp 4 and the normally closed contact indicator lamp 5 are arranged side by side in the middle of the front face of the device housing 3.
Further, the front lower part of the device shell 3 is also provided with a control switch 8 for controlling the whole opening and closing of the device.
Furthermore, the power module adopts a lithium battery.
Furthermore, the voltage regulating plate adopts a microelectronic booster circuit.
Furthermore, the reserved test interface 2 can be connected with a meter such as an external extended standard voltmeter for more accurate display.
The utility model has the advantages that: through improving original relay calibration equipment, make its volume reduce, and is convenient to carry, make the maintainer can hand-carry and improve the work convenience, pull out the relay simultaneously and insert on the device's relay base and can use, and convenient for operation can effectively reduce the time of traditional inspection work, help improving work efficiency, normally open as the relay through adopting emitting diode in addition, the state display of normally closed contact, can visual display, effectively avoid traditional inspection method to need the maintainer to measure the problem of each group's contact one by one, help reducing working strength.
Drawings
Fig. 1 is a schematic diagram of the general structural principle of the embodiment of the present invention.
Fig. 2 is a contact state display block diagram according to an embodiment of the present invention.
Fig. 3 is a schematic view of the external shape of the device according to the embodiment of the present invention.
Fig. 4 is a schematic diagram of the accuracy test of the embodiment of the present invention.
Fig. 5 is a schematic diagram of the verification time according to the embodiment of the present invention.
Fig. 6 is a test chart of the verification time according to the embodiment of the present invention.
Figure number and name: the device comprises a relay base 1, a test interface 2, a device shell 3, a normally open contact indicator lamp 4, a normally closed contact indicator lamp 5, a voltage regulating potentiometer 6, a charging interface 7, a control switch 8 and a digital display voltage display unit 9.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
As shown in fig. 1-3, the portable fast intermediate relay calibration device of the present invention comprises a device housing 3, wherein a power module and a 0-30V voltage regulation plate are arranged inside the device housing 3, the power module is connected with the voltage regulation plate, and the voltage regulation plate adopts a microelectronic voltage boost circuit; in order to display the output voltage and facilitate voltage adjustment, the output end of the voltage-regulating plate is connected with a digital display voltage display unit 9, and a voltage-regulating potentiometer 6 is led out from the voltage-regulating plate to facilitate voltage adjustment, the digital display voltage display unit 9 and the voltage-regulating potentiometer 6 are both fixedly arranged on the front surface of the device shell 3, the digital display voltage display unit 9 adopts a miniature digital display voltage module, the display precision adopts a 4-bit mode, and the display precision requirement can be met;
the relay base 1 is clamped and arranged on the upper portion of the front face of the device shell 3, the testing interface 2 is reserved at the top end of the device shell, the charging interface 7 is reserved at the bottom of the device shell, the charging interface 7 is connected with the power module, the relay base 1 is connected with the voltage regulating plate and the contact state display unit, and the other end of the contact state display unit is connected with the power module; the reserved test interface 2 can be connected with a meter such as an external extended standard voltmeter for more accurate display.
The contact state display unit comprises 4 pairs of normally open contact indicator lamps 4 and 4 pairs of normally closed contact indicator lamps 5; the normally open contact indicator lamp 4 and the normally closed contact indicator lamp 5 are both light emitting diodes and are arranged in the middle of the front face of the device shell 3 side by side, and since the rated voltage of the power supply module is 5V, the rated working current of the light emitting diodes is calculated according to 10mA, and the loop current limiting resistance is 470 omega.
The lower part of the front surface of the device shell 3 is also provided with a control switch 8 for controlling the whole opening and closing of the device.
The power module adopts 2-section 18650 lithium batteries as a power supply, and is additionally provided with a charging and discharging control circuit, and the charging input voltage and the output voltage are both 5V, so that the output voltage is constant, and the work of a boosting plate is facilitated; on the other hand can charge repeatedly, has avoided the work that needs to change the battery when the battery power is not enough.
The utility model discloses before using, need debug earlier experimental and continuous operation examination, device normal operation, the relay action and return the homoenergetic and reliably move, the relay auxiliary contact state shows accurately, and the digital display voltmeter shows accurately. After the device is assembled and debugged normally, all parts of the device are installed in the aluminum alloy device shell 3, and the installation of the device is completed.
The test experiment process of the device comprises the following steps:
1) precision testing
The test method comprises the following steps: after the assembly of the device is completed, the accuracy of the output voltage of the device is tested by using a standard meter.
Experimental data: as shown in Table 1;
| standard watch | 2.001 | 4.003 | 6.001 | 8.001 | 10.01 | 12.01 |
| Device for measuring the position of a moving object | 2.01 | 3.89 | 5.88 | 7.87 | 9.85 | 11.8 |
| Difference value | -0.009 | 0.113 | 0.111 | 0.121 | 0.12 | 0.11 |
| Accuracy of | -0.04％ | 0.47％ | 0.46％ | 0.50％ | 0.50％ | 0.46％ |
| Standard watch | 14.02 | 16.01 | 18.01 | 20.01 | 22.01 | 24.01 |
| Device for measuring the position of a moving object | 13.8 | 15.8 | 17.8 | 19.8 | 21.8 | 23.8 |
| Difference value | 0.12 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 |
| Accuracy of | 0.50％ | 0.46％ | 0.46％ | 0.46％ | 0.46％ | 0.46％ |
And (4) experimental conclusion: as shown in FIG. 4, the output precision of the device reaches the requirement of a 0.5-level test instrument.
2) Testing the working efficiency;
the test method comprises the following steps: the checking device is used for checking 10 intermediate relays, and the required time is recorded.
Experimental data: the time required for using the original equipment is 20 minutes; the time required for using the new device was 6 minutes and 40 seconds.
And (4) experimental conclusion: as shown in fig. 5, the time required for completing the verification of 10 intermediate relays by using the new verification device is 6 minutes and 40 seconds, which is reduced by about 66.6% compared with the time (20 minutes) required for using the original equipment, thereby showing that the device can reduce the time required for the verification work.
3) Actual field test;
test site: liu jia xia hydroelectric power plant No. 1 generating set.
The test method comprises the following steps: the new device is used for checking the intermediate relays (about 300 total 24V intermediate relays) of the class-C overhaul work of the No. 1 generating set, and the required time is recorded.
Experimental data: the time required by using the original equipment is about 10 hours; the time required for using the new device was about 4.7 hours.
And (4) experimental conclusion: as shown in FIG. 6, the time consumption for checking the intermediate relay for completing the C-level overhaul work of 1 unit set by using the device is reduced by 53 percent compared with the original time.
To sum up, use this device can shorten the time of auxiliary relay check-up work, and the test accuracy can satisfy the requirement simultaneously, can improve maintenance work efficiency.
The utility model discloses in, through improving original relay calibration equipment, make its volume reduce, and is convenient for carry, make the maintainer can hand-carry and improve the work convenience, pull out the relay simultaneously and insert and can use on the device's relay base 1, and convenient for operation, can effectively reduce the time of traditional inspection work, help improving work efficiency, normally open as the relay through adopting emitting diode in addition, the state display of normally closed contact, can visual display, effectively avoid traditional inspection method to need the maintainer to measure the problem of each group's contact one by one, help reducing working strength.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
The techniques not described in detail in the present application are well known techniques.
Claims (5)
1. The utility model provides a portable quick intermediate relay calibration equipment, includes device shell (3), its characterized in that:
a power supply module and a voltage regulating plate are arranged in the device shell (3), the power supply module is connected with the voltage regulating plate, the output end of the voltage regulating plate is connected with a digital display voltage display unit (9), and a voltage regulating potentiometer (6) is also connected onto the digital display voltage display unit (9), and the digital display voltage display unit (9) and the voltage regulating potentiometer (6) are both fixedly arranged on the front surface of the device shell (3);
the positive upper portion block of device shell (3) is provided with relay base (1), and top is stayed and is equipped with test interface (2), and the bottom is stayed and is equipped with interface (7) that charges, and interface (7) that charge is connected with power module, and relay base (1) is connected with pressure regulating plate and contact state display unit, and contact state display unit's the other end is connected with power module.
2. A portable rapid intermediate relay verification apparatus according to claim 1, characterized in that: the contact state display unit comprises a normally open contact indicator lamp (4) and a normally closed contact indicator lamp (5).
3. A portable rapid intermediate relay verification apparatus according to claim 2, characterized in that: the normally open contact indicator lamp (4) and the normally closed contact indicator lamp (5) are arranged in the middle of the front face of the device shell (3) side by side.
4. A portable rapid intermediate relay verification apparatus according to claim 1, characterized in that: the lower part of the front surface of the device shell (3) is also provided with a control switch (8) for controlling the whole opening and closing of the device.
5. A portable rapid intermediate relay verification apparatus according to claim 1, characterized in that: the power module adopts a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922065105.6U CN211955739U (en) | 2019-11-26 | 2019-11-26 | Portable quick intermediate relay calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922065105.6U CN211955739U (en) | 2019-11-26 | 2019-11-26 | Portable quick intermediate relay calibration equipment |
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| CN211955739U true CN211955739U (en) | 2020-11-17 |
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| CN201922065105.6U Active CN211955739U (en) | 2019-11-26 | 2019-11-26 | Portable quick intermediate relay calibration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945836A (en) * | 2021-09-29 | 2022-01-18 | 龙口矿业集团有限公司 | Relay comprehensive utilization maintenance platform |
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2019
- 2019-11-26 CN CN201922065105.6U patent/CN211955739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945836A (en) * | 2021-09-29 | 2022-01-18 | 龙口矿业集团有限公司 | Relay comprehensive utilization maintenance platform |
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